2018 MERCEDES-BENZ C-CLASS CABRIOLET wheel bolts

Obser
vethefo llowing information: Note
s on cleaning and car eA voiding vehicle damage
Wheels/rims Usewate r and acid-free wheel cleaners. R
Do not use acidic wheel cleaners toremo vebrake dust.
This could damage wheel bolts and brake components.
R Toavoid cor rosion of the brake discs and brakepads, drive
th eve hicle for a few minutes af ter cleaning before parking
it. The brake discs and brakepads warm up and dry out.
Wi ndo ws
Clean windowsinside and outside with a damp clo thand with
a cleaning agent recommended for Mercedes-Benz. Do not use dry clo
ths or abrasive or sol vent-based cleaning
agents toclean the inside of windo ws.
Wi per blades
Fold out the wiper blades and clean them using a damp clo th.D o not clean the wiper blades too of ten.
Ex terior lighting
Cleanthe lenses with a wet sponge and mild cleaning agent,
e.g. car sha mpoo. Only use cleaning agents or cleaning clo
thsth at are suitable
fo r plast ic lenses.
Sensors Cleanthe sensors in the front and rear bumper and in the
ra diator grille with a soft clo thand car shampoo. When using a high-pressure cleaner, main
tain a minimum dis‐
ta nce of 30 cm.
Re versing camera
and 360° Camera R
Open the camera co ver with the multimedia sy stem
(0013 page 226).
R Use clean water and a soft clo thtoclean the camera lens. Do not use a high-pressure cleaner.404
Maintenance and care

0007
Attach wheel spanner 3tosoc ket2 and
tighten the hub cap clockwise.
Specified tightening torq ue: 25 Nm. Ra
ising theve hicle when changing a wheel Re
quirements:
R There are no persons in theve hicle.
R The vehicle has been prepared for a wheel
ch ange (0013 page445).
R The hub caps ha vebeen remo ved
( 0013 page446).
Impor tant no tes on using the jack:
R Use only theve hicle-specific jack that has
been tested and appr ovedby Mercedes-Benz
to raise theve hicle.
R The jack is only designed forra ising and
holding theve hicle for a short time while a
wheel is being changed and not for mainte‐
nance workunder theve hicle.
R The jack must be placed on a firm ,fl at and
non-slip sur face. If necessar y,use a lar ge,
fl at, load-bearing, non-slip unde rlay. R
The foot ofthe jack must be positioned verti‐
cally under the jack support point. Ru
les of conduct when theve hicle is raised:
R Never place your hands or feet under the
ve hicle.
R Never lie under theve hicle.
R Do not start the engine and do not release
th e electric parking brake.
R Do not open or close any doors or the boot
lid. 0007
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish tochange by
about one full turn. Do not unscr ewthe bolts
comple tely. Wheels and tyres
447

Re
moving a wheel Re
quirements:
R The vehicle is raised (0013 page447).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers.
When changing a wheel, avoid applying any force
to the brake discs, since this could impair the
le ve l of com fort when braking.
000E NO
TEDama getothre ading from dirt on
wheel bolts 0007
Do not place wheel bolts in sand or on
a dirty sur face. 0007
Unscr ew the uppermost wheel bolt com‐
ple tely. 0007
Screw centring pin 1instead of the wheel
bolt into theth re ading. 0007
Unscr ew there maining wheel bolts fully. 0007
Remo vethe wheel. 0007
Fitthe new wheel (0013 page449). Fi
tting a new wheel Re
quirements:
R The wheel is remo ved (0013 page449).
Me rcedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers. 000A
WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can cause the wheel bolts/
wheel nuts tocome loose.
As a result, you could lose a wheel while driv‐
ing. 0007
Never oil or grease theth re ads. 0007
Intheeve nt of dama getotheth re ads,
con tact a qualified specialist workshop
immediatel y. 0007
Have the damaged wheel bolts or dam‐
aged hub thre ads replaced. 0007
Do not continue driving. 0007
Obser vethe information on thech oice of
tyres (0013 page441).
Fo r tyres with a specified direction of rotation,
an ar rowonthe side wall of the tyre indicates
th e cor rect di rection of rotat ion. Obser vethe
direction of rotation when fitting. Wheels and tyres
449

0007
Slide the wheel tobe mounted onto the cen‐
tring pin and push it on. 000A
WARNING Risk of inju ryfrom tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip. 0007
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. 0007
Be sure toobser vethe instructions and
saf ety no tes on "Changing a wheel"
(0013 page441). 0007
For saf etyre asons, on lyuse wheel bolts
which ha vebeen appr ovedby Mercedes-
Benz and forth e wheel in question. 0007
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated until they are
fi nger-tight. 0007
Unscr ew the cent ring pin. 0007
Tighten the last wheel bolt until it is finger-
tight. 0007
Ifth e collapsible emer gency spa rewheel has
been fitted, infla tethe collapsible emer gency
spa rewheel (0013 page 452). 0007
Lowe rth eve hicle (0013 page 450). Lo
weri ngtheve hicle af ter a wheel change Re
quirements:
R The new wheel has been fitted
(0013 page 449).
000E NO
TEDama getothe emer gency spa re
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the emer gency collapsible spa re
wheel can damage its rim. 0007
Inflate the emer gency collapsible spa re
wheel using the tyre inflation compres‐
sor before lo wering theve hicle. 0007
Tolowe r the vehicle: turnthe crank of the
jack anti-clo ckwise until theve hicle is once
again standing firm lyon the ground. 0007
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated (1 to5 ).
Specified tightening torq ue: 130 Nm. 000A
WARNING Risk of inju rythro ugh incor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque. 0007
Makesure the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. 0007
Ifyo u are not sure, do not mo vethe
ve hicle. Consult a qualified specialist 450
Wheels and tyres